KR102100890B1 - Air cleaner - Google Patents

Abstract

Disclosed is an air purifier that secures a large air flow rate and a fast flow rate of discharge air and improves the design aesthetics of the product.
An air purifier according to an embodiment of the present invention includes a housing; A blowing fan provided inside the housing; And a path through which the air inside the housing flowing by the blower fan is discharged to the outside, has an annular discharge end, is formed inside the housing, and has a cross-sectional area toward the discharge end from inside the housing. Includes; narrowing annular discharge flow path.

Description

Air cleaner {AIR CLEANER}

The present invention relates to an air purifier, and more particularly, to an air purifier capable of quickly circulating indoor air.

The air purifier according to the related art has a structure in which air is blown through an outlet opening in a circular or polygonal shape on the front or top of a product.

The air purifier according to the related art may have a large amount of air per unit time due to the wide opening area of the discharge port, but has a disadvantage that the flow rate of the discharged air is slow, and thus the speed of circulating the indoor air is slow. It is necessary to increase the number of revolutions, but there is a disadvantage that noise is generated by increasing the number of revolutions of the fan.

On the other hand, in order to solve this disadvantage, when the area of the discharge port is narrowed, there is a disadvantage in that the indoor air circulation speed is lowered because air volume is small and air is discharged through a narrow area.

The present invention has been devised to solve at least some of the problems of the prior art as described above, and as an aspect, it is an object to secure a large air flow rate and a fast flow rate of discharge air and to provide an air purifier with improved design aesthetics Is done.

In addition, as an aspect of the present invention, an object of the present invention is to provide an air purifier capable of balancing the entire area of the filter.

In addition, as an aspect of the present invention, an object of the present invention is to provide an air purifier capable of adjusting a flow rate and a discharge type of discharge air.

As one aspect for achieving at least some of the above objects, the present invention is a housing having a discharge opening opened in a circular shape on one front surface, a blowing fan provided inside the housing, and inside the housing flowing by the blowing fan. Constituting a path through which air is discharged to the outside, an annular discharge passage having an annular discharge end disposed on one surface of the housing, formed inside the housing, and having a narrower cross-sectional area toward the discharge end from inside the housing , Air disposed in the center of the filter member and the discharge opening disposed in the annular discharge passage, extending into the interior of the housing to extend from the front side to the other side of the housing, and form one side of the annular discharge flow path Includes a guide, the housing, the front cover and the air guide is formed of the discharge opening The opening having a shape corresponding to the ball is formed, and includes a rear cover that is combined with the front cover to form an interior space in which the blowing fan and the filter member can be installed, and from the front side through the air guide. A through hole penetrating to the other rear surface is formed, and the annular discharge flow path discharges air to an annular discharge end disposed on one front surface of the housing, and the air inside the through hole introduced into the through hole through the opening and the Provided is an air purifier that forms an exhaust flow together with air located outside the annular discharge end.

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In addition, in one embodiment, the air guide may be configured in a form in which the outer diameter becomes larger toward the discharge opening from the inside of the housing.

In addition, in one embodiment, the air guide may be configured in the form of a hollow trumpet.

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In addition, in one embodiment, the blowing fan may introduce air into the annular discharge passage.

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In addition, in one embodiment, the filter member may have a shape surrounding the circumference of the air guide.

In addition, in one embodiment, the filter member may be configured such that the inner surface is spaced apart from the outer surface of the air guide.

In addition, in one embodiment, the filter member may be rotatable in the circumferential direction of the annular discharge flow path.

In one embodiment, the filter member has an air concentration section disposed between the discharge side of the blowing fan and the annular discharge flow path, and when the blowing fan is operated, the filter member is periodically rotated to periodically rotate the air concentration section. Can be changed to

In order to implement such an operation, in one embodiment, a driving unit for rotating the filter member in a circumferential direction is provided, and the driving unit is an annular driven frame fastened to one end of the filter member, and the driven frame is circumferential. It may include a filter driving member to rotate in the direction.

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On the other hand, in one embodiment, it is provided on the discharge end, it may be provided with a grill member for guiding the discharge air.

In addition, in one embodiment, it is provided to cover the hollow of the air guide, it may be provided with a display unit for displaying the operating state or having a control button.

On the other hand, in one embodiment, a control unit for adjusting the opening area of the discharge end may be provided.

In one embodiment, the adjusting portion may be configured to adjust the outer diameter (outer diameter, outer diameter) of the discharge end.

In order to implement such an operation, in one embodiment, the adjusting unit may include a plurality of blanking plates provided outside the discharge end and movable in the radial direction of the discharge end.

In addition, the adjustment unit, the plurality of blanking plates are arranged at equal intervals along the outer periphery of the discharge end and each of the shielding plate is an annular rotating frame supporting to be rotatable in the radial direction of the discharge end; And an annular fixed frame that rotates the plurality of blanking plates according to the rotation of the rotating frame.

Here, a rotating shaft is rotatably coupled to the rotating frame at one end of the blanking plate, a guide projection is provided at the other end of the blanking plate, and the guide projection is inserted into the fixed frame and slideable. And a guide groove extending in the radial direction of the fixed frame may be formed.

In addition, the adjusting unit may further include a frame driving member for rotating the rotating frame to adjust the rotation angle of the rotating frame.

According to an embodiment of the present invention having such a configuration, it is possible to obtain an effect of securing a fast flow rate of the discharge air and a large amount of air.

In addition, according to an embodiment of the present invention, it is possible to use the entire area of the cylindrical filter in a balanced manner, it is possible to obtain an effect that the life of the cylindrical filter is improved.

In addition, according to an embodiment of the present invention, by controlling the area of the air discharge port, it is possible to obtain an effect that the flow rate and discharge form of the discharge air can be adjusted.

1 is a front perspective view of an air purifier according to Embodiment 1 of the present invention.
2 is a rear perspective view of an air purifier according to Embodiment 1 of the present invention.
3 is a front view of an air purifier according to Embodiment 1 of the present invention.
4 is a side view of an air purifier according to Embodiment 1 of the present invention.
5 is a rear view of the air purifier according to Embodiment 1 of the present invention.
6 is an exploded perspective view of an air purifier according to Embodiment 1 of the present invention.
7 is a side cross-sectional view of an air purifier according to Embodiment 1 of the present invention.
8 is a perspective view of a grill member included in the air purifier according to Embodiment 1 of the present invention.
9 is a front perspective view of an air purifier according to Embodiment 2 of the present invention.
10 is a sectional front view showing the internal configuration of an air purifier according to Embodiment 3 of the present invention.
11 is a perspective view of a drive unit included in the air purifier according to Embodiment 3 of the present invention.
12 is a front view and a side cross-sectional view showing a discharge end in a state in which the discharge end of the air purifier according to Embodiment 4 of the present invention is completely opened.
13 is a front view and a side cross-sectional view showing a discharge end in a partially closed state of an air purifier according to a fourth embodiment of the present invention.
14 is a view showing a state in which the adjustment part included in the air purifier according to the fourth embodiment of the present invention is installed inside the housing.
15 is a perspective view showing an operating state of the control unit included in the air cleaner according to the fourth embodiment of the present invention.
16 is an exploded perspective view of the control unit included in the air cleaner according to the fourth embodiment of the present invention.
17 is a view showing an operating state of the cover plate of the control unit included in the air purifier according to the fourth embodiment of the present invention.
18 is a view showing the operating state of the cover plate of the control unit included in the air purifier according to the fourth embodiment of the present invention.
19 is a front perspective view of an air purifier according to Embodiment 5 of the present invention.
20 is a side cross-sectional view showing a display unit included in the air cleaner according to the fifth embodiment of the present invention.

The terminology used herein is only used to describe a specific embodiment, and is not intended to limit the present invention. In addition, in this specification, a singular expression includes a plural expression unless the context clearly indicates otherwise.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

<Example 1>

First, Example 1 of the present invention will be described with reference to FIGS. 1 to 8.

1 to 8, the air purifier 100 according to an embodiment of the present invention includes a housing 110, a blowing fan 130, an annular discharge passage 140, a filter member 150 and a grill It may include a member 170.

The housing 110 constitutes the external appearance of the air purifier 100 according to an embodiment of the present invention, and may provide an internal space in which the blowing fan 130 and the filter member 150 can be installed, and the interior In the annular discharge flow path 140 may be formed.

In one embodiment, the housing 110 may include a front cover 112 and a rear cover 114, as shown in Figure 6, the front cover 112 and the rear cover 114 are combined with each other It can be provided with an internal space in which the blowing fan 130 and the filter member 150 can be installed.

In addition, the housing 110 may be provided with an air suction unit 117 through which external air is sucked into the housing 110. In one embodiment, the air suction unit 117 may be provided on the front and rear surfaces of the housing 110 in correspondence to the point that the blower fan 130, which will be described later, can be sucked in both directions, but is not limited thereto.

In addition, in one embodiment, the outer surface of the housing 110 may be provided with a pollution degree sensor 120 capable of measuring the degree of contamination of indoor air.

The blowing fan 130 is provided inside the housing 110, and when the external air is sucked into the housing 110 during operation, the annular discharge passage 140 to be described later flows through the discharge end 142. The flow of air can be generated to be discharged again.

The blowing fan 130 may introduce air into the annular discharge passage 140 in at least one of the upper and lower sides and the side of the annular discharge passage 140 to be described later.

In embodiments 1 to 5 of the present invention shown in FIGS. 1 to 20, the discharge side of the blower fan 130 is disposed below the annular discharge flow path 140 so that air is introduced to the bottom of the annular discharge flow path 140 Is disclosed, but is not limited thereto.

Meanwhile, in one embodiment, the blowing fan 130 may be configured as a centrifugal fan capable of exerting high suction static pressure and air volume performance.

At this time, the blowing fan 130 may be configured as a type capable of inhaling air in both directions, but is not limited thereto.

The annular discharge flow path 140 is formed inside the housing 110, and constitutes a path through which air inside the housing 110 flowing by the blowing fan 130 is discharged to the outside of the housing 110.

The annular discharge passage 140 may be formed such that the annular discharge end 142, that is, the end of the passage is disposed on one surface of the housing 110.

In one embodiment, the annular discharge flow path 140 is formed to be inclined upward or downward toward the front of the housing 100 or horizontally inside the housing 110 so that the discharge end 142 is disposed on the front surface of the housing 110. Can be. Through this, the annular discharge flow path 140 may be formed in a cylindrical shape lying horizontally inside the housing 110 as a whole.

Here, the discharge end 142 of the annular discharge flow path 140 is disposed to be exposed on the front surface of the housing 110 to function as an air discharge port through which the air inside the housing 110 is discharged into the room, and the annular discharge flow path 140 It is formed in an annular shape according to the shape of the end of the.

On the other hand, such an annular discharge flow path 140 is formed in a shape in which the cross-sectional area becomes narrower toward the discharge end 142 from the inside of the housing 110 as shown in the cross-sectional view of FIG. 7.

In order to form such an annular discharge end 142, an air guide 180 may be provided inside the housing 110 in one embodiment.

The air guide 180 may extend into the interior of the housing 110 to form an annular discharge flow path 140.

Specifically, a discharge opening 113 that is circularly opened may be formed on one surface of the housing 110, and one end of the air guide 180 is disposed at the center of the discharge opening 113 and the other end of the housing 110. It can be extended to the inside to form an inner diameter (內徑, inner diameter) of the annular discharge flow path 140.

At this time, the distance between the rim of one end of the air guide 180 and the discharge opening 113 constitutes the discharge end 142 of the annular discharge flow path 140.

In addition, the space between the outer surface of the air guide 180 and the inner wall of the housing 110 or the space between the outer surface of the air guide 180 and the filter member 150 to be described later constitutes the annular discharge flow path 140. do.

In addition, the air guide 180 may be configured in a form in which the outer diameter increases as it goes from one end to the other to form a shape in which the cross-sectional area of the annular discharge passage 140 becomes narrower toward the discharge end 142.

In addition, in one embodiment, the air guide 180 may extend from one surface to the other surface of the housing 110, and may be configured in the form of a hollow trumpet.

At this time, an opening 115 corresponding to the hollow of the other end of the air guide 180 may be formed on the other surface of the housing 110, and the other end of the air guide 180 may be connected to an edge of the opening 115.

Through such a structure, the through hole 182 penetrated from one surface to the other surface through the air guide 180 may be formed in the housing 110.

On the other hand, as described above, the air guide 180 is not limited to a shape in which the outer diameter increases as it goes from one end to the other, and if the annular discharge flow path 140 is formed toward the discharge end 142, the cross-sectional area is narrowed to form any shape. You can do it.

For example, the air guide 180 may be formed in a cylindrical shape having the same diameter at both ends, and the inner wall of the housing 110 or the shape of the filter member 150 may be formed narrower toward one end of the air guide 180. , As the air guide 180 goes from one end to the other, the outer diameter becomes smaller and the inner wall of the housing 110 or the shape of the filter member 150 goes toward one end of the air guide 180, It may be formed to be smaller with a larger change amount than the change amount of the outer diameter.

The filter member 150 is disposed in the annular discharge passage 140 to purify the air flowing into or flowing into the annular discharge passage 140.

The filter member 150 may be composed of various functional filters capable of removing large dust, fine dust, viruses, and odors contained in the air passing through. In addition, the filter member 150 may be composed of a single filter having one air purifying function, or a plurality of filters each having the various functions may be composed of overlapping filter aggregates.

Meanwhile, in one embodiment, the filter member 150 may be configured in a cylindrical shape surrounding the circumference of the air guide 180.

Here, the air discharged from the blowing fan 130 may pass through the filter member 150 around the filter member 150 to be introduced into the annular discharge flow path 140.

At this time, if a sufficient gap between the filter member 150 and the air guide 180 is not secured, the filter resistance increases and the air does not pass smoothly through the filter member 150. In one embodiment, the filter member ( 150) is preferably configured such that the inner surface is spaced over a predetermined distance from the outer surface of the air guide 180. Here, the separation distance between the inner surface of the filter member 150 and the outer surface of the air guide 180 may be set to various values according to the design specifications of the device.

In addition, here, the interval between the filter member 150 and the air guide 180 may constitute an annular discharge flow path 140.

Meanwhile, although not illustrated, in another embodiment, the filter member may be disposed on the air intake side of the blowing fan 130 to be configured to purify air flowing into the blowing fan 130. The filter member is not made of a cylindrical shape disposed in the annular discharge flow path 140 as described above, but is disposed between the air intake portion 117 inside the housing 110 and the air intake side of the blowing fan 130. It can be made in a plate shape.

In another embodiment of the present invention, the cylindrical filter member 150 may be excluded from the annular discharge flow path 140.

The grill member 170 is provided at the discharge end 142 and can guide air discharged from the discharge end 142.

In one embodiment, the grill member 170 is provided at regular intervals in the annular discharge end 142 and may include a plurality of guide wings 172 extending long along the discharge direction of the discharge air.

The grill member 170 may increase the linear reach distance of the discharge air by adding linearity to the air flow of the discharge air or making the discharge air a swirling flow through the shape of the plurality of guide wings 172.

On the contrary, when the discharge end 142 is simply opened in an annular shape without the grill member 170, there is a disadvantage that air discharged from the discharge end 142 diffuses in the radial direction of the discharge end 142.

As described above, the air purifier 100 according to an embodiment of the present invention increases the flow velocity as the air flowing along the annular discharge flow path 140 flows to the discharge end 142, thereby discharging air at a fast flow rate I can do it. For reference, Bernoulli's theorem shows that the flow rate increases when the air passes through a narrow cross-sectional flow path.

In addition, in the air purifier 100 according to an embodiment of the present invention, air discharged at a high flow rate from the discharge end 142 is present in the air inside the through-hole 182 and outside the discharge end 142. By generating a flow in the air, high airflow performance can be exhibited.

Specifically, the air discharged from the discharge end 142 has a relatively lower pressure than the surrounding air, that is, the air inside the through hole 182 and the air outside the discharge end 142 due to a fast flow rate, so the through hole 182 ) The air inside and the air outside the discharge end 142 flow toward the discharge air having a relatively low pressure.

Through this, the air purifier 100 according to an embodiment of the present invention can secure a fast flow rate and a large amount of air.

<Example 2>

9 is a front perspective view of an air purifier 100 according to Embodiment 2 of the present invention.

9, unlike the air purifier 100 according to the first embodiment of the present invention, the air purifier 100 according to the second embodiment of the present invention may have a housing 110 in a rectangular box shape.

That is, the air purifier 100 according to various embodiments of the present invention is not limited to a rounded shape in which the outer shape of the housing 110 corresponds to the annular discharge end 142 as illustrated in FIGS. 1 to 8. Instead, as shown in FIG. 9, the discharge end 142 is maintained in an annular shape, but the outer shape of the housing 110 may be configured in various forms.

In addition, in order to configure a concise appearance of the device, the air intake 117 may be excluded from the front surface of the housing 110 and formed on the side surface of the housing 110.

<Example 3>

10 and 11, an air purifier 100 according to Embodiment 3 of the present invention will be described.

Here, FIG. 10 is a front sectional view showing the internal configuration of the air purifier 100 according to Embodiment 3 of the present invention, and FIG. 11 is a perspective view of the driving unit 160.

10 and 11, in one embodiment of the present invention, the filter member 150 is configured in a shape surrounding the annular discharge flow path 140, a part of the circumferential direction of the blowing fan 130 Arranged between the discharge side and the annular discharge passage 140, it may be configured to be rotatable in the circumferential direction of the annular discharge passage 140.

In one embodiment, since the blowing fan 130 blows air from one side of the annular discharge passage 140, the filter member 150 has an air concentration section disposed between the blowing fan 130 and the annular discharge passage 140 (S) may occur.

Here, the air concentration section (S) is a portion disposed closest to the blowing fan 130 among the circumferences of the filter member 150, and the air discharged from the blowing fan 130 almost straightens the filter member 150. This is the part where the largest amount of air passes intensively.

In such a structure, when the blower fan 130 is operated for a long time, air is concentrated only in a specific part of the filter member 150, and the amount of dust collected in the air-concentrated part is higher than that of the other parts. The service life may be partially non-uniform, and the air treatment performance may be deteriorated.

To solve this, the air purifier 100 according to the third embodiment of the present invention is configured to periodically rotate the filter member 150 during the operation of the blowing fan 130 so that the air concentration section S is periodically changed. Can be.

To this end, in one embodiment, a drive unit 160 for rotating the filter member 150 in the circumferential direction may be provided inside the housing 110.

In one embodiment, the drive unit 160 is fastened to one end of the filter member 150, as shown in Figure 11, the annular driven frame 162 rotatably installed in the circumferential direction inside the housing 110 And a filter driving member 165 for rotating the driven frame 162 in the circumferential direction.

For example, a driven gear 163 may be provided on the rim of the driven frame 162 as shown in FIG. 11, and the filter driving member 165 may engage a power transmission gear engaged with the gear of the driven frame 162 ( 166) and a motor member 167 for rotating the power transmission gear 166, but is not limited thereto.

On the other hand, the air purifier 100 according to the third embodiment of the present invention has a control unit (not shown) for controlling the filter driving member 165, the control unit of the operating time, operating speed and pollution degree sensor of the blowing fan 130 The filter member 150 may be rotated periodically based on the measured value of 120 to operate to change the air concentration section S, but is not limited thereto.

<Example 4>

12 to 18, the air purifier 100 according to the fourth embodiment of the present invention will be described.

Here, FIG. 12 shows a state in which the discharge end 142 of the air purifier 100 according to Embodiment 4 of the present invention is fully opened, and FIG. 13 shows a state in which the discharge end 142 is partially closed, and adjustment in FIG. 14. The unit 190 is installed on the inner circumference of the housing 110, and the operating state of the adjusting unit 190 is illustrated in FIG. 15, and FIG. 16 is an exploded perspective view of the adjusting unit 190, and FIGS. 17 and 18 The operating state of the blanking plate 192 of the adjustment unit 190 is shown.

12 to 18, the air purifier 100 according to the fourth embodiment of the present invention adjusts the opening area of the discharge end 142 or the adjusting unit 190 for shielding the discharge end 142 It may further include.

In one embodiment, the adjusting unit 190 may be configured to adjust the outer diameter (outer diameter, outer diameter) of the discharge end 142. That is, the adjustment unit 190 may be configured to adjust the opening area of the annular discharge end 142 by reducing or increasing the outer diameter of the discharge end 142.

In order to implement such an operation, in one embodiment, the adjusting unit 190 includes a case 191, a plurality of blanking plates 192, a rotating frame 193, a fixed frame 194, and a frame driving member 195. It can contain.

The case 191 may accommodate a plurality of blank plates 192, a rotating frame 193, a fixed frame 194, and a frame driving member 195 to be supported inside the housing 110. The shape and structure of the case 191 is not particularly limited, and supports a plurality of blank plates 192, a rotating frame 193, a fixed frame 194, and a frame driving member 195 inside the housing 110. Any shape and structure can be used.

In one embodiment, the case 191 may be provided with a hole portion 191a opened to a larger diameter than the discharge end 142 to extend the annular discharge flow path to the discharge opening 113 formed in the front cover 112. have.

In addition, in one embodiment, a limit guide 191b may be provided inside the case 191 to limit the movement distance of the limit protrusion 193b provided in the rotating frame 193 to be described later.

The plurality of blanking plates 192 are installed inside the case 191 and are provided on the outer side of the discharge end 142, and may be configured to be movable in the radial direction of the discharge end 142.

The plurality of blanking plates 192 may move the radial direction of the discharge end 142 to cover a portion of the discharge end 142, thereby adjusting the outer diameter of the discharge end 142.

In one embodiment, the plurality of blanking plates 192 are arranged at equal intervals along the outer periphery of the discharge end 142 to form an annular shape as a whole.

To this end, in one embodiment, the blanking plate 192 may be configured in a flat and curved bar shape, and the plurality of blanking plates 192 may be partially overlapped with each other as illustrated in FIG. 16. .

In addition, the cover plate 192 may include a rotating shaft 192a at one end and a guide projection 192b at the other end. Here, the rotating shaft 192a may be configured as a protrusion projecting from one surface of the blanking plate 192, and the guide projection 192b may be configured as a projection projecting from the other surface of the blanking plate 192.

In this configuration, the rotating shaft 192a of the blanking plate 192 can be rotatably fastened to the shaft hole 193a of the rotating frame 193, and the guide projection 192b of the blanking plate 192 is a fixed frame ( The guide groove 194a of 194) can be slidably fastened along the longitudinal direction of the guide groove 194a.

The rotating frame 193 may be configured in an annular shape, and may be rotatably provided in a circumferential direction inside the case 191.

The rotating frame 193 is disposed on one surface of the plurality of blanking plates 192, a plurality of blanking plates 192 are disposed at equal intervals along the outer edge of the discharge end 142, and each blanking plate 192 is It can be supported to be rotatable in the radial direction of the discharge end (142).

In one embodiment, the rotating frame 193 may include a shaft hole 193a to which the rotating shafts 192a of the plurality of blanking plates 192 can be fastened.

In addition, in one embodiment, a frame gear for receiving the rotational force of the frame driving member 195 may be provided on the rim of the rotating frame 193.

In addition, in one embodiment, a limit protrusion 193b for limiting the rotation angle of the rotation frame 193 by the limit guide 191b of the case 191 may be provided at an edge of the rotation frame 193. The limit protrusion 193b is applied to both ends of the limit guide 191b to limit the rotation angle of the rotation frame 193, so that the rotation frame 193 can be rotated only within the limit guide 191b range.

The fixed frame 194 is disposed on the other surface of the plurality of blanking plates 192, and according to the rotation of the rotating frame 193, the plurality of blanking plates 192 can be rotated based on each rotation axis 192a. .

To this end, a guide groove 194a into which the guide protrusion 192b of the blanking plate 192 is slidably inserted may be formed in the fixed frame 194. The guide groove 194a may be formed in a long groove shape extending in the radial direction of the fixed frame 194.

In this configuration, when the rotating frame 193 is rotated, a plurality of blanking plates 192 fastened to the rotating frame 193 through the rotating shaft 192a moves according to the rotational direction of the rotating frame 193. .

At this time, since the guide projections 192b of the plurality of blanking plates 192 are fastened to the guide grooves 194a of the fixed frame 194, the shaft holes through which the rotation shafts 192a are fastened by rotation of the rotation frame 193 In order to compensate for a change in distance between the guide groove 194a to which the guide projection 192b is fastened (193a), the plurality of blanking plates 192 maintain the state where the guide projection 192b is fastened to the guide groove 194a. One can be rotated in the radial direction of the discharge end (142).

Here, when the plurality of cover plate 192 is rotated in the radial direction of the discharge end 142, the outer diameter of the discharge end 142 is adjusted according to the diameter of the circular opening formed by the inner edge of the plurality of cover plate 192 Will be.

For example, when the rotating frame 193 is rotated in one direction, a plurality of blanking plates 192 may be arranged as shown in FIG. 17, so that the outer diameter of the discharge end 142 may be increased, and the rotating frame 193 is the other side. When rotated to a plurality of cover plate 192 is arranged as shown in Figure 18 can be reduced the outer diameter of the discharge end (142).

In one embodiment, the plurality of cover plate 192 is configured such that the diameter of the circular opening formed by the inner edge can be adjusted to a size smaller than or equal to the inner diameter of the discharge end 142, so that the discharge end 142 is hermetically sealed. It can also be shielded.

Meanwhile, the frame driving member 195 is provided inside the case 191 and can rotate the rotating frame 193 to adjust the rotation angle of the rotating frame 193.

For example, the frame driving member 195 includes a rotating gear 195a engaged with the frame gear 193c of the rotating frame 193, and a step motor 195b rotating the rotating gear 195a. However, the present invention is not limited thereto, and any mechanical element capable of rotating the rotating frame 193 may be used.

On the other hand, the air purifier 100 according to the fourth embodiment of the present invention as described above, by adjusting the opening area of the discharge end 142 through the control unit 190, it is possible to change the flow characteristics of the discharge air.

Specifically, as illustrated in FIG. 13, when a part of the discharge end 142 is closed, since the discharge end 142 constitutes a narrower flow path than the case in which the discharge end 142 is completely opened, the flow velocity of the discharge air This can be relatively fast.

In addition, when a part of the discharge end 142 is closed as shown in FIG. 13, since the discharge form of the air is narrower than when the discharge end 142 is completely opened, as shown in FIG. 12, air It is more effective when blowing away in a narrow range.

<Example 5>

Finally, with reference to FIGS. 19 and 20, the air purifier 100 according to Embodiment 5 of the present invention will be described. 19 is a front perspective view of the air purifier 100 according to Embodiment 5 of the present invention, and FIG. 20 is a side cross-sectional view showing a display unit 200 included in the air purifier 100 according to Embodiment 5 of the present invention to be.

19 and 20, the air purifier 100 according to Embodiment 5 of the present invention is provided to cover the hollow of the air guide 180, and displays or controls the operation state of the air purifier 100 The display unit 200 having a button may be further included.

That is, unlike the air purifier 100 according to the embodiments 1 to 4 of the present invention shown in FIGS. 1 to 18, the air purifier 100 according to the fifth embodiment of the present invention has a through hole ( Instead of 182, a circular display unit 200 covering the through-hole 182 may be provided.

The air purifier 100 according to the fifth embodiment of the present invention uses the through hole 182 formed as an empty space as a display and control panel, thereby eliminating the need for a separate display and control button on the housing 110. It has the advantage that the design aesthetics of the device is improved by constructing a concise appearance.

On the other hand, in the above, the first to fifth embodiments of the present invention were separately described as different embodiments, but the air purifier 100 of the present invention incorporates at least one of the aforementioned first to fifth embodiments. It can be implemented in the form.

The present invention has been illustrated and described with respect to specific embodiments, but those skilled in the art may variously modify and change the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. I want to reveal that I can do it.

100: air purifier 110: housing
112: front cover 113: discharge opening
114: rear cover 115: opening
117: air intake 120: pollution level sensor
130: blowing fan 140: annular discharge flow path
142: discharge end 150: filter member
S: Air concentration section 160: Drive unit
162: driven frame 163: driven gear
165: filter driving member 166: power transmission gear
167: motor member 170: grill member
172: guide wing 180: air guide
182: through-hole 190: adjusting portion
191: case 191a: hole
191b: Limit Guide 192: Blank
192a: rotating shaft 192b: guide projection
193: rotating frame 193a: shaft hole
193b: Limit projection 193c: Frame gear
194: Fixed frame 194a: Guide groove
195: frame driving member 195a: rotating gear
195b: Step motor 200: display unit

Claims (22)

A housing having a discharge opening opened in a circle on one front surface;
A blowing fan provided inside the housing;
It constitutes a path through which the air inside the housing flowing by the blower fan is discharged to the outside, has an annular discharge end disposed on one surface of the housing, is formed inside the housing, and inside the housing An annular discharge passage having a narrower cross-sectional area toward the discharge end;
A filter member disposed in the annular discharge passage; And
An air guide disposed in the center of the discharge opening, extending into the interior of the housing, extending from one front surface to the other rear surface of the housing, and forming one side surface of the annular discharge flow path;
It includes,
The housing,
A front cover on which the discharge opening is formed; And
An opening having a shape corresponding to the hollow of the air guide is formed, and the rear cover is combined with the front cover to form an internal space in which the blowing fan and the filter member can be installed;
Including, through the air guide is formed through-holes penetrating from one front surface to the other rear surface,
The annular discharge flow path discharges air to an annular discharge end disposed on one front surface of the housing.
An air purifier that forms an exhaust flow together with the air inside the through hole introduced into the through hole through the opening and the air located outside the annular discharge end.
delete delete According to claim 1,
The air guide is an air purifier configured to have an outer diameter that increases from the inside of the housing toward the discharge opening.
According to claim 1,
The air guide is an air purifier composed of a hollow trumpet shape.
delete According to claim 1,
The blower fan is an air purifier that introduces air into the annular discharge passage.
delete According to claim 1,
The filter member has an air cleaner having a shape surrounding the periphery of the air guide.
The method of claim 9,
The filter member is an air purifier whose inner surface is spaced apart from the outer surface of the air guide.
The method of claim 10,
The filter member is an air purifier rotatable in the circumferential direction of the annular discharge passage.
The method of claim 11,
In the filter member, an air concentration section is disposed between the discharge side of the blowing fan and the annular discharge flow path,
An air cleaner in which the filter member is periodically rotated during operation of the blower fan to periodically change the air concentration section.
The method of claim 11,
Further comprising a drive unit for rotating the filter member in the circumferential direction,
The drive unit is an air cleaner comprising an annular driven frame fastened to one end of the filter member, and a filter driving member rotating the driven frame in a circumferential direction.
delete According to claim 1,
It is provided on the discharge end, the air cleaner further comprising a grill member for guiding the discharge air.
The method of claim 5,
It is provided to cover the hollow of the air guide, the air purifier further comprises a display unit for displaying the operating state or having a control button.
According to claim 1,
The air purifier further comprises a control unit for adjusting the opening area of the discharge end.
The method of claim 17,
The adjusting unit is an air purifier configured to adjust the outer diameter (outer diameter, outer diameter) of the discharge end.
The method of claim 17,
The adjusting portion is provided on the outer side of the discharge end and the air purifier including a plurality of screens that can be moved in the radial direction of the discharge end.
The method of claim 19,
The adjustment unit,
An annular rotating frame in which the plurality of blanking plates are disposed at equal intervals along the outer periphery of the discharge end, and supporting each blanking plate to be rotatable in the radial direction of the discharge end; And
And an annular fixing frame for rotating the plurality of blanking plates according to the rotation of the rotating frame.
The method of claim 20,
A rotating shaft is rotatably coupled to the rotating frame at one end of the blanking plate, and a guide projection is provided at the other end of the blanking plate,
An air purifier in which the guide protrusion is inserted into the fixed frame and is slidable, and a guide groove extending in a radial direction of the fixed frame is formed.
The method of claim 20,
The control unit further comprises a frame driving member for rotating the rotating frame to adjust the rotation angle of the rotating frame.

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